Ash-ejector.



J. H. SNELLING.

ASH EJEGTOR.

ArPLIoATIoN FILED 1120.18, 1912.

l ,073,445 Patented Sept. 16, 1913.

Jorn: n. sminuire, or NEWARK, New JERSEY.

ASH-EJECTOB.

Specication of Letters Patent.

Patented Sept. 16, 1913.

Application led December 18, 1912. Serial No. 737,390.

To all whom z't may concern Be it known that I, JOHN H. SNELLING, a citizen of the UnitedStates, residing at Newark, in the county of Essex and State of New Jersey, haveinvented a certain new and useful Imprbvement in Ash-Ejectors, of

which the following is a specification.

The invention relates to apparatus for ejecting ashes from the furnace-rooms of vessels, and analogous conveyer service, usually comprising a hopper into which the ashes are fed, an angularly arranged dis charge pipe connecting to the hopper, and a nozzle entering the discharge pipe and delivering thereto a strong stream of Water or other iiuid serving to act upon the ashes received in the hopper and to force them through the discharge pipe. In ejectors of this character there is a tendency of the material to lodge in the hopper and form a more or less horizontal layer or bridge therein before descending sufiiciently to arrive within the influence of the stream from the nozzle and thus interrupt the operation of the apparatus until the bridge is broken. Means, as a jet'from a hose-nozzle or other supply projected downwardly into the mouth of the hopper, and a downwardly projected jet from the interior of the wall of the hopper, have been employed in breaking such arch or bridge when formed, the former inconvenient and the latter unreliable in its action.

The object of this invention is to provide means for preventing the formation of an arch or bridge in the hopper, or, if allowed to form, it will be quickly broken and the ejecting operation permitted to proceed immediately.

The invention consists in certain novel features of construction and arrangement by which the above objects are attained, to be hereinafter described.

The accompanying drawings form a part of this specification and show the invention as it has been carried out in practice.

Figure l is a side 'elevation of the working portion of an ejector constructed in accordance with the invention, and Fig. 2 is a corresponding vertical section. Fig. 3 is a transverse horizontal section through the hopper, taken on the line 3-3 in Fig. 2, and Fig. 4 is a similar section taken on the line V4--4 in the same figure.

Similar letters of reference indicate the same parts in all the figures.

A. is the hopper of the usual conical or upwardly Haring form connecting through a curved neck B at the lower end to a tubular branch C extending upwardly at an angle to the hopper and forming part of the discharge pipe or passage which may be lengthened as desired to reach the point of delivery by the addition ot other lengths or sections of pipe as at D. At or near the bottom of the curved neck B and in axial alinenient with the branch C a nozzle E is inserted, adapted to deliver a strong stream of water or other fluid longitudinally through such branch and thus take up and force the ashes or other material received from the hopper, along the branch and its connected discharge pipes to the point of delivery.

In the wall of the hopper A, at or near the junction of the latter with the curved neck B, is an annular passage F supplied with water under pressure and having one or more small jet-holes f opening into the interior of the hopper at an angle to the axis thereof, arranged to project their jets against the opposite face of the wall, upwardly and angularly as indicated by the dotted lines f1 f1 in Fig. 2. Thus arranged, and with the nozzle and jets in action, the formation of an arch in the hopper by the clogging of material received therein is completely obviated by reason of the agitation caused by the jets which insure the required partial luidity of the mass; or, if it be preferred not to operate the jets continuously. and an arch is formed in the hopper, it will be broken immediately upon again supplying water under pressure to the jets which by attacking the loosely packed material from below, aided by the cross-angularity of the streams, causes the arch to crumble and fall, as has been fully dcmonj the apparatus as shown, a small passage G is cored or otherwise produced in the Wall of the nozzle E, in communication with the interior of the latter and with a lat-eral passage H in the base of the hopper, controlled by a valve J and connecting with an upwardly inclined passage K in the wall of the hopper, leading to the annular passage F. Water under nozzle pressure is thus diverted to supply the jets f as required, and is controlled by the valve J.

L is a cover for the hopper, and M is an annular over-hanging internal flange or lip at the mouth of the hopper serving to check the upward escape of water from the jets f to the furnace-room while insuring the lubricating effect due to wetting the whole interior surface of the hopper and thus aiding the free downward movement of the material.

Modifications may be made in the forms and proportions as found necessary or desirable in adapting the invention to Various locations or conditions of service.

Although the invention is shown and described as an ash ejector especially designed for marine service it will be understood that 1t will serve successfully in other situations and for other materials.

The number of jets f may be varied or one alone may serve, and their direction'changed as circumstances or experience may dictate.

1. In an apparatus of the character set forth, a hopper of vtapering form for the reception of material to be discharged, a discharge pipe therefrom, and a jet within said hopper adjacent the narrowest part thereof arranged to projectI a stream upwardly against the under surface of an arch or bridge formed by said material within said hopper.

2. In an apparatus of the character Set forth, a hopper of tapering form for the reception of material to be discharged` a discharge pipe therefrom, and a plurality of jets within said hopperadjacent the narrowest part thereof arranged to project streams upwardly against the under surface of an arch or bridge formed by said material Within said hopper.

3. In an apparatus ofthe character set forth, a hopper of tapering form for the reception of material to be discharged, a discharge pipe therefrom, and an inclined jet Within said hopper adjacent the narrowest part thereof arranged to project a stream "upwardly and angularly against the interior of said hopper on the side opposite to said jet and at an angle against the under surface of an arch or bridge formed by said material within said hopper.

4. In an apparatus of the character set forth, a hopper of tapering form for the reamasar) 5. In an apparatus of the character set forth, a hopper of taperin form for the reception of material to be discharged, said hopper having a passage in its wall Aand an upwardly inclined jet-hole leading from said passage to the interior ofsaid hopper, means for supplying fluid under pressure'to said passage at the narrowest part. of said hopper and jet-hole, and means for leading away the material to be discharged.

6. In an apparatus of the character set forth, a hopper of tapering form for the reception of material to be discharged, said hopper having a passage in `its wall extending around said hopper, and a plurality of inwardly inclined jet-holes leading from said passage at the narrowest part of said hopper to the interior of said hopper, means for supplying fluid under pressure to said passage and jet-holes, and means for leading away the material to be discharged.

7. In an apparatus of the character set4 forth, a hopper of conicalform, a discharge passage leading angularly upward from the bottom of said hopper, an ejector nozzle arranged to project a stream of fluid under pressure into and longitudinally of said discharge passage, said hopper having an an'- nular passage in its wall and an upwardly inclined jet-hole leading from said annular passage tothe interior of said hopper, said ejector nozzle and hopper having supply passages therein leading from the nozzlesupply to said annular passage, and a valve controlling said supply passages.

8. In an apparatus of the character set forth, a hopper of conical form, a discharge passage leading angularly upward from the bottom of said hopper, an ejector nozzle arranged to project a stream of fluid under pressure into and longitudinally of said discharge passage, said hopper having an annular passage in its wall and a plurality of upwardly inclined jet-holes leading from said annular passage to the-interior of said hopper, said ejector nozzle and hopper having supply passages therein leading from said nozzle-supply to said annular passage, a valve controlling said supply passages, and an inwardly projecting annular lip at the mouth of said hopper.

, 9. In an apparatusof the character set forth, a hopper of tapering form, a discharge pipe with ai, neck connecting said hopper and discharge pipe, means for dis- J. H. SNELLING.

ASH EJEGTOR.

ArPLIoATIoN FILED 1120.18, 1912.

l ,073,445 Patented Sept. 16, 1913. 

